Maintenance fees coming due

Framatome GmbH

27 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 6, 2026. Unpaid by Jun 7, 2027, that one lapses early.

A maintenance fee does not end a patent on its due date. It falls due at 3.5, 7.5 and 11.5 years from grant, and the patent lapses only if the fee is still unpaid at the end of the six month grace period that follows.

Patent	Title	Holder	Status	Fee due	Lapses if unpaid	Expires	Confidence
US 11,670,429	Method for calculating a PCI margin associated with a loading pattern of a nuclear reactor, associated system, computer program and medium Framatome In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 Term ends Jun 20, 2037 · High confidence	Framatome	In force	Dec 6, 2026	Jun 7, 2027	Term ends Jun 20, 2037	High confidence
US 10,315,234	Method for Conditioning a Power-Generating Circulatory System of a Power Plant Framatome GmbH In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 Term ends Nov 3, 2034 · High confidence	Framatome GmbH	In force	Dec 11, 2026	Jun 11, 2027	Term ends Nov 3, 2034	High confidence
US 11,678,459	Ventilation and Air Conditioning System with a Passive Emergency Cooling Mode Framatome GmbH In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 Term ends Sep 21, 2038 · High confidence	Framatome GmbH	In force	Dec 13, 2026	Jun 14, 2027	Term ends Sep 21, 2038	High confidence
US 11,682,497	Method for Regulating Operating Parameters of a Nuclear Reactor and Corresponding Nuclear Reactor Framatome In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Jul 6, 2039 · High confidence	Framatome	In force	Dec 20, 2026	Jun 21, 2027	Term ends Jul 6, 2039	High confidence
US 10,332,645	Method and Device for Storing Containers Having an Encapsulated Fuel Rod or a Fuel Rod Section Framatome GmbH In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 Term ends Apr 25, 2033 · High confidence	Framatome GmbH	In force	Dec 25, 2026	Jun 25, 2027	Term ends Apr 25, 2033	High confidence
US 10,340,050	Method of Decontaminating Metal Surfaces in a Cooling System of a Nuclear Reactor Framatome GmbH In force Fee due Jan 2, 2027 Lapses if unpaid Jul 2, 2027 Term ends Sep 5, 2035 · High confidence	Framatome GmbH	In force	Jan 2, 2027	Jul 2, 2027	Term ends Sep 5, 2035	High confidence
US 11,694,816	Self-Powered In-Core Detector Arrangement for Measuring Flux in a Nuclear Reactor Core Framatome Inc. In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 Term ends Mar 24, 2041 · High confidence	Framatome Inc.	In force	Jan 4, 2027	Jul 6, 2027	Term ends Mar 24, 2041	High confidence
US 10,345,189	Device and Method for Performing a Leak Test on Fuel Rod Capsules Framatome GmbH In force Fee due Jan 9, 2027 Lapses if unpaid Jul 9, 2027 Term ends Apr 30, 2036 · High confidence	Framatome GmbH	In force	Jan 9, 2027	Jul 9, 2027	Term ends Apr 30, 2036	High confidence
US 10,352,053	Device for Repairing Damage to the Bottom of a Container Filled with Water Framatome GmbH In force Fee due Jan 16, 2027 Lapses if unpaid Jul 16, 2027 Term ends May 25, 2035 · High confidence	Framatome GmbH	In force	Jan 16, 2027	Jul 16, 2027	Term ends May 25, 2035	High confidence
US 10,363,631	Neutron Irradiated Material Repair Framatome Inc. In force Fee due Jan 30, 2027 Lapses if unpaid Jul 30, 2027 Term ends Nov 8, 2036 · High confidence	Framatome Inc.	In force	Jan 30, 2027	Jul 30, 2027	Term ends Nov 8, 2036	High confidence
17 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

10 of 27 patents shown. Soonest fee due date first, then patent number.

Pro members see every patent with a maintenance fee coming due: number, title, status, the due date, and the date it lapses if the fee goes unpaid through the grace period.

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Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.